*{
    padding: 0;
    margin: 0;
}
img{
    width: 100%;
    height: 100%;
    display: block;
}
li{
    list-style: none;
}
a{
    text-align: center;
    color: #000;
}
.clearfix:after{
    content: "";
    height: 0;
    display: block;
    visibility: hidden;
    clear: both;
}